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Table 2 Proportions of the different histological types of malignant CMT diagnosed between 2003 and 2010

From: Epidemiology of canine mammary tumours on the Canary Archipelago in Spain

Histological type

Proportion (CI95%)

Trend test p-value*

Complex carcinoma

42.30% (40.52%; 44.10%)

0.2150

Tubulopapillary carcinoma

29.74% (28.10%; 31.42%)

0.9030

Carcinoma in benign tumour

15.70% (14.40%; 17.05%)

0.3190

Solid carcinoma

5.42% (4.64%; 6.30%)

0.8990

Carcinosarcoma

2.22% (1.72%; 2.82%)

0.4360

Carcinoma NOSa

1.01% (0.68%; 1.44%)

0.2250

Anaplastic carcinoma

0.94% (0.63%; 1.36%)

0.3230

In situ carcinoma

0.94% (0.63%; 1.36%)

 < 0.0001

Squamous cell carcinoma

0.74% (0.46%; 1.12%)

0.0133

Osteosarcoma

0.37% (0.19%; 0.66%)

0.5560

Fibrosarcoma

0.20% (0.07%; 0.44%)

0.0879

Haemangiosarcoma

0.17% (0.05%; 0.39%)

0.4260

Lipid-rich carcinoma

0.13% (0.04%; 0.34%)

0.7220

Cribriform carcinoma

0.03% (0.00%; 0.19%)

0.4760

Osteochondrosarcoma

0.03% (0.00%; 0.19%)

0.1300

Spindle cell carcinoma

0.03% (0.00%; 0.19%)

0.7890

  1. a Carcinoma NOS refers to those diagnoses where the histological type of carcinoma has not been indicated
  2. *A significant p-value (less than 0.05) implies some kind of trend (upward or downward) on the relative proportion of the histological type over the study period. Otherwise, the relative proportion has remained stable